The language provides 5 base types and 2 composite types that can be used.
Base types: Bool , Bits , UInt for unsigned integers, SInt for signed integers and Enum.
In addition to the base types, Spinal supports Fixed point that is documented here and floating point that is actually under development here.
Finally, a special type is available for checking equality between a BitVector and a bits constant that contains holes (don’t care values). An example is shown below:
val myBits = Bits(8 bits) val itMatch = myBits === M"00--10--" // - don't care value